Improvement in grain-separators



L- PATRIC. Grain Separator.

Patented June 24, 1862.

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l V UNITED STATES PATENT OF ICE I LEWIS PATRIO, OF VICTOR, NEW YORK, ASSIGNOR TO HIMSELF AND HENRY REED, OF SAME PLACE.

IMPROVEMENT IN GRAI N-SEPARATORS.

Specification forming part of Letters Patent No. 35,739, dated June 24, 1862.

To aZZ whom it may concern.-

Be it known that I, LEWIS PATRIO, of Victor, in the county of Ontario and State of New York, have invented certain new and useful Improvements in GraiuSeparators; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making apart of this specification, in which- Figure l isa vertical longitudinal section of the screen barrel or case B, feed-hopper 0, screens D and E, and showing a side elevation of the fan-case F, belt I), and the several pulleys. Fig. 2isatransversesection through the plane indicated by the red line in Fig. 1.

The nature of this invention will be understood by reference to the drawings and specification.

The screens D and E are contained in a cylindrical case or barrel, B, in which they are allowed to revolve without friction. The under side of this case opens into the screen-box S, except a few inches at the lower end,-where a trough is formed into which the grain is discharged from the screens, and from which it is thrown into the spout p by the joint action of the revolving screens D and E and the scraper c.

The hoops a and o are fixed to the arms a, and the screens D and E are attached to these hoops. The inner screen, E, should be somewhat coarser than the outer one, D, except for a few inches at the upper end, where the grain is received, which should be braided or woven finer, as seen at a, Fig. 1, to better enable the grain to spread on the screen. The shaft It has a hearing at one end in the head It and at the other in the hanger T, which is attached to the hopper C.

There is a double-wing spiral feeder, f, fixed to the shaft B to more effectually convey the grain into the end of the inner screen, E, and also to agitate and expose the grain to the blast at this point.

The upper half of the end of the barrel B is fitted into a groove, 0, in the side of the hopper O, which latter is held to its place by a catch on the top of the barrel and a spring latch, m, and it is provided with a slide, 8, by means of which the flow of grain into the mill is regulated. The scraper cis attached to the outer screen, D, and revolves with it. There may be two or more scrapers, if desirable.

The tube 6 is designed to convey all sub stances which will not screen through or blow out from the inner screen through the outer one and deposit it into the screen-box, leaving the grain entirely free from all impurities, either coarse 0r fine.

There is a sort of guard-rack, 20, Figs. 1 and 2, at the opening into the fan to prevent the grain from being thrown therein, and at the same time not to obstruct the blast.

The driving-pulley P, to which the crankhandle is attached, is fixed to the shaft B, and the fan is driven by the belt'b, which turns at an angle over the pulleys b and d.

The inclination of the screen-barrel may be adjusted by means of the screw 8, light grain requiring more inclination than heavy.

The discharge spout p is provided with hooks at the mouth, as seen in Fig. 2, on which the bag is hung to receive the grain. The screen-box Sis emptied by withdrawing the slide d.

The arrows indicate the direction in which the screens and fan are revolved in the direc tion of the blast. I

By means of the caster-rollers y the mill is very easily moved about by simply raising the opposite end from the floor.

The uncleanedgrain enters from the hopper G into the inner screen, E, (all the lighter substances being blown out by the blast at this point,) by which it is kept constantly and perfectly agitated, the said screen carrying it up one side as it revolves, until each kernel and particle of matter loses its equilibrium and falls, the wheat toward the lower end of the screen, (owing to its longitudinal inclinatiom) and during this process every particle of matter is exposed to the blast as well as to the action of the screens, all the lighter substances being blown out through the open end of the barrel B, under the hopper 0, while the heavier fine substances are entirely screened through into the outer screen, D, where the same process is repeated; and, if desirable, the coarse screen E may be provided with an independ ent discharge spout, whereby the different grades of grain would be delivered into separies of cylindical concentric revolving screens having a central blast passing through them longitudinally in the opposite direction from which the grain is fed.

LEWIS PATRIC.

Vitnesses:

WM. S. LOUGHBOROUGH, DANL. DE. GARNER. 

